Varflex Varflex Corporation is a global leader in manufacturing electrical insulated sleeving to protect wires, cables, wire harnesses, hoses, tubes and other electrical components from flames, abrasion, mois Varflex Corporation is a global leader in manufacturing electrical insulated sleeving to protect wires, cables, wire harnesses, hoses, tubes and other electrical components from flames, abrasion, moisture, fuels, and other environmental factors. Varflex has the ultimate cable sleeving solutions for heat protection and electrical protection.